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Finding the Fourth Proportional to 493,123.32, 680,503.52 and 275,335.36

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Solution

The fourth proportional to 493,123.32, 680,503.52 and 275,335.36 is: 379,959.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,123.32 : 680,503.52 = 275,335.36 : x
  2. Step 2: Convert to fraction form
    493,123.32/680,503.52 = 275,335.36/x
  3. Step 3: Cross multiply
    493,123.32x = 680,503.52 × 275,335.36
  4. Step 4: Simplify right side
    493,123.32x = 187,366,681,660.47
  5. Step 5: Solve for x
    x = 187,366,681,660.47/493,123.32
  6. Step 6: Final answer
    x = 379,959.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.